<script lang="ts">
	import { v4 as uuidv4 } from 'uuid';
	import { toast } from 'svelte-sonner';

	import { getBackendConfig, getTaskConfig, updateTaskConfig } from '$lib/apis';
	import { setDefaultPromptSuggestions } from '$lib/apis/configs';
	import { config, models, settings, user } from '$lib/stores';
	import { createEventDispatcher, onMount, getContext } from 'svelte';

	import { banners as _banners } from '$lib/stores';
	import type { Banner } from '$lib/types';

	import { getBanners, setBanners } from '$lib/apis/configs';

	import Tooltip from '$lib/components/common/Tooltip.svelte';
	import Switch from '$lib/components/common/Switch.svelte';
	import Textarea from '$lib/components/common/Textarea.svelte';

	const dispatch = createEventDispatcher();

	const i18n = getContext('i18n');

	let taskConfig = {
		TASK_MODEL: '',
		TASK_MODEL_EXTERNAL: '',
		ENABLE_TITLE_GENERATION: true,
		TITLE_GENERATION_PROMPT_TEMPLATE: '',
		IMAGE_PROMPT_GENERATION_PROMPT_TEMPLATE: '',
		ENABLE_AUTOCOMPLETE_GENERATION: true,
		AUTOCOMPLETE_GENERATION_INPUT_MAX_LENGTH: -1,
		TAGS_GENERATION_PROMPT_TEMPLATE: '',
		ENABLE_TAGS_GENERATION: true,
		ENABLE_SEARCH_QUERY_GENERATION: true,
		ENABLE_RETRIEVAL_QUERY_GENERATION: true,
		QUERY_GENERATION_PROMPT_TEMPLATE: '',
		TOOLS_FUNCTION_CALLING_PROMPT_TEMPLATE: ''
	};

	let promptSuggestions = [];
	let banners: Banner[] = [];

	const updateInterfaceHandler = async () => {
		taskConfig = await updateTaskConfig(localStorage.token, taskConfig);

		promptSuggestions = await setDefaultPromptSuggestions(localStorage.token, promptSuggestions);
		await updateBanners();

		await config.set(await getBackendConfig());
	};

	onMount(async () => {
		taskConfig = await getTaskConfig(localStorage.token);

		promptSuggestions = $config?.default_prompt_suggestions ?? [];
		banners = await getBanners(localStorage.token);
	});

	const updateBanners = async () => {
		_banners.set(await setBanners(localStorage.token, banners));
	};
</script>

{#if taskConfig}
	<form
		class="flex flex-col h-full justify-between space-y-3 text-sm"
		on:submit|preventDefault={() => {
			updateInterfaceHandler();
			dispatch('save');
		}}
	>
		<div class="  overflow-y-scroll scrollbar-hidden h-full pr-1.5">
			<div class="mb-3.5">
				<div class=" mb-2.5 text-base font-medium">{$i18n.t('Tasks')}</div>

				<hr class=" border-gray-100 dark:border-gray-850 my-2" />

				<div class=" mb-1 font-medium flex items-center">
					<div class=" text-xs mr-1">{$i18n.t('Set Task Model')}</div>
					<Tooltip
						content={$i18n.t(
							'A task model is used when performing tasks such as generating titles for chats and web search queries'
						)}
					>
						<svg
							xmlns="http://www.w3.org/2000/svg"
							fill="none"
							viewBox="0 0 24 24"
							stroke-width="1.5"
							stroke="currentColor"
							class="size-3.5"
						>
							<path
								stroke-linecap="round"
								stroke-linejoin="round"
								d="m11.25 11.25.041-.02a.75.75 0 0 1 1.063.852l-.708 2.836a.75.75 0 0 0 1.063.853l.041-.021M21 12a9 9 0 1 1-18 0 9 9 0 0 1 18 0Zm-9-3.75h.008v.008H12V8.25Z"
							/>
						</svg>
					</Tooltip>
				</div>

				<div class=" mb-2.5 flex w-full gap-2">
					<div class="flex-1">
						<div class=" text-xs mb-1">{$i18n.t('Local Models')}</div>
						<select
							class="w-full rounded-lg py-2 px-4 text-sm bg-gray-50 dark:text-gray-300 dark:bg-gray-850 outline-hidden"
							bind:value={taskConfig.TASK_MODEL}
							placeholder={$i18n.t('Select a model')}
						>
							<option value="" selected>{$i18n.t('Current Model')}</option>
							{#each $models.filter((m) => m.owned_by === 'ollama') as model}
								<option value={model.id} class="bg-gray-100 dark:bg-gray-700">
									{model.name}
								</option>
							{/each}
						</select>
					</div>

					<div class="flex-1">
						<div class=" text-xs mb-1">{$i18n.t('External Models')}</div>
						<select
							class="w-full rounded-lg py-2 px-4 text-sm bg-gray-50 dark:text-gray-300 dark:bg-gray-850 outline-hidden"
							bind:value={taskConfig.TASK_MODEL_EXTERNAL}
							placeholder={$i18n.t('Select a model')}
						>
							<option value="" selected>{$i18n.t('Current Model')}</option>
							{#each $models as model}
								<option value={model.id} class="bg-gray-100 dark:bg-gray-700">
									{model.name}
								</option>
							{/each}
						</select>
					</div>
				</div>

				<div class="mb-2.5 flex w-full items-center justify-between">
					<div class=" self-center text-xs font-medium">
						{$i18n.t('Title Generation')}
					</div>

					<Switch bind:state={taskConfig.ENABLE_TITLE_GENERATION} />
				</div>

				{#if taskConfig.ENABLE_TITLE_GENERATION}
					<div class="mb-2.5">
						<div class=" mb-1 text-xs font-medium">{$i18n.t('Title Generation Prompt')}</div>

						<Tooltip
							content={$i18n.t('Leave empty to use the default prompt, or enter a custom prompt')}
							placement="top-start"
						>
							<Textarea
								bind:value={taskConfig.TITLE_GENERATION_PROMPT_TEMPLATE}
								placeholder={$i18n.t(
									'Leave empty to use the default prompt, or enter a custom prompt'
								)}
							/>
						</Tooltip>
					</div>
				{/if}

				<div class="mb-2.5 flex w-full items-center justify-between">
					<div class=" self-center text-xs font-medium">
						{$i18n.t('Tags Generation')}
					</div>

					<Switch bind:state={taskConfig.ENABLE_TAGS_GENERATION} />
				</div>

				{#if taskConfig.ENABLE_TAGS_GENERATION}
					<div class="mb-2.5">
						<div class=" mb-1 text-xs font-medium">{$i18n.t('Tags Generation Prompt')}</div>

						<Tooltip
							content={$i18n.t('Leave empty to use the default prompt, or enter a custom prompt')}
							placement="top-start"
						>
							<Textarea
								bind:value={taskConfig.TAGS_GENERATION_PROMPT_TEMPLATE}
								placeholder={$i18n.t(
									'Leave empty to use the default prompt, or enter a custom prompt'
								)}
							/>
						</Tooltip>
					</div>
				{/if}

				<div class="mb-2.5 flex w-full items-center justify-between">
					<div class=" self-center text-xs font-medium">
						{$i18n.t('Retrieval Query Generation')}
					</div>

					<Switch bind:state={taskConfig.ENABLE_RETRIEVAL_QUERY_GENERATION} />
				</div>

				<div class="mb-2.5 flex w-full items-center justify-between">
					<div class=" self-center text-xs font-medium">
						{$i18n.t('Web Search Query Generation')}
					</div>

					<Switch bind:state={taskConfig.ENABLE_SEARCH_QUERY_GENERATION} />
				</div>

				<div class="mb-2.5">
					<div class=" mb-1 text-xs font-medium">{$i18n.t('Query Generation Prompt')}</div>

					<Tooltip
						content={$i18n.t('Leave empty to use the default prompt, or enter a custom prompt')}
						placement="top-start"
					>
						<Textarea
							bind:value={taskConfig.QUERY_GENERATION_PROMPT_TEMPLATE}
							placeholder={$i18n.t(
								'Leave empty to use the default prompt, or enter a custom prompt'
							)}
						/>
					</Tooltip>
				</div>

				<div class="mb-2.5 flex w-full items-center justify-between">
					<div class=" self-center text-xs font-medium">
						{$i18n.t('Autocomplete Generation')}
					</div>

					<Tooltip content={$i18n.t('Enable autocomplete generation for chat messages')}>
						<Switch bind:state={taskConfig.ENABLE_AUTOCOMPLETE_GENERATION} />
					</Tooltip>
				</div>

				{#if taskConfig.ENABLE_AUTOCOMPLETE_GENERATION}
					<div class="mb-2.5">
						<div class=" mb-1 text-xs font-medium">
							{$i18n.t('Autocomplete Generation Input Max Length')}
						</div>

						<Tooltip
							content={$i18n.t('Character limit for autocomplete generation input')}
							placement="top-start"
						>
							<input
								class="w-full outline-hidden bg-transparent"
								bind:value={taskConfig.AUTOCOMPLETE_GENERATION_INPUT_MAX_LENGTH}
								placeholder={$i18n.t('-1 for no limit, or a positive integer for a specific limit')}
							/>
						</Tooltip>
					</div>
				{/if}

				<div class="mb-2.5">
					<div class=" mb-1 text-xs font-medium">{$i18n.t('Image Prompt Generation Prompt')}</div>

					<Tooltip
						content={$i18n.t('Leave empty to use the default prompt, or enter a custom prompt')}
						placement="top-start"
					>
						<Textarea
							bind:value={taskConfig.IMAGE_PROMPT_GENERATION_PROMPT_TEMPLATE}
							placeholder={$i18n.t(
								'Leave empty to use the default prompt, or enter a custom prompt'
							)}
						/>
					</Tooltip>
				</div>

				<div class="mb-2.5">
					<div class=" mb-1 text-xs font-medium">{$i18n.t('Tools Function Calling Prompt')}</div>

					<Tooltip
						content={$i18n.t('Leave empty to use the default prompt, or enter a custom prompt')}
						placement="top-start"
					>
						<Textarea
							bind:value={taskConfig.TOOLS_FUNCTION_CALLING_PROMPT_TEMPLATE}
							placeholder={$i18n.t(
								'Leave empty to use the default prompt, or enter a custom prompt'
							)}
						/>
					</Tooltip>
				</div>
			</div>

			<div class="mb-3.5">
				<div class=" mb-2.5 text-base font-medium">{$i18n.t('UI')}</div>

				<hr class=" border-gray-100 dark:border-gray-850 my-2" />

				<div class="  {banners.length > 0 ? ' mb-3' : ''}">
					<div class="mb-2.5 flex w-full justify-between">
						<div class=" self-center text-sm font-semibold">
							{$i18n.t('Banners')}
						</div>

						<button
							class="p-1 px-3 text-xs flex rounded-sm transition"
							type="button"
							on:click={() => {
								if (banners.length === 0 || banners.at(-1).content !== '') {
									banners = [
										...banners,
										{
											id: uuidv4(),
											type: '',
											title: '',
											content: '',
											dismissible: true,
											timestamp: Math.floor(Date.now() / 1000)
										}
									];
								}
							}}
						>
							<svg
								xmlns="http://www.w3.org/2000/svg"
								viewBox="0 0 20 20"
								fill="currentColor"
								class="w-4 h-4"
							>
								<path
									d="M10.75 4.75a.75.75 0 00-1.5 0v4.5h-4.5a.75.75 0 000 1.5h4.5v4.5a.75.75 0 001.5 0v-4.5h4.5a.75.75 0 000-1.5h-4.5v-4.5z"
								/>
							</svg>
						</button>
					</div>

					<div class=" flex flex-col space-y-1">
						{#each banners as banner, bannerIdx}
							<div class=" flex justify-between">
								<div
									class="flex flex-row flex-1 border rounded-xl border-gray-100 dark:border-gray-850"
								>
									<select
										class="w-fit capitalize rounded-xl py-2 px-4 text-xs bg-transparent outline-hidden"
										bind:value={banner.type}
										required
									>
										{#if banner.type == ''}
											<option value="" selected disabled class="text-gray-900"
												>{$i18n.t('Type')}</option
											>
										{/if}
										<option value="info" class="text-gray-900">{$i18n.t('Info')}</option>
										<option value="warning" class="text-gray-900">{$i18n.t('Warning')}</option>
										<option value="error" class="text-gray-900">{$i18n.t('Error')}</option>
										<option value="success" class="text-gray-900">{$i18n.t('Success')}</option>
									</select>

									<input
										class="pr-5 py-1.5 text-xs w-full bg-transparent outline-hidden"
										placeholder={$i18n.t('Content')}
										bind:value={banner.content}
									/>

									<div class="relative top-1.5 -left-2">
										<Tooltip content={$i18n.t('Dismissible')} className="flex h-fit items-center">
											<Switch bind:state={banner.dismissible} />
										</Tooltip>
									</div>
								</div>

								<button
									class="px-2"
									type="button"
									on:click={() => {
										banners.splice(bannerIdx, 1);
										banners = banners;
									}}
								>
									<svg
										xmlns="http://www.w3.org/2000/svg"
										viewBox="0 0 20 20"
										fill="currentColor"
										class="w-4 h-4"
									>
										<path
											d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z"
										/>
									</svg>
								</button>
							</div>
						{/each}
					</div>
				</div>

				{#if $user.role === 'admin'}
					<div class=" space-y-3">
						<div class="flex w-full justify-between mb-2">
							<div class=" self-center text-sm font-semibold">
								{$i18n.t('Default Prompt Suggestions')}
							</div>

							<button
								class="p-1 px-3 text-xs flex rounded-sm transition"
								type="button"
								on:click={() => {
									if (promptSuggestions.length === 0 || promptSuggestions.at(-1).content !== '') {
										promptSuggestions = [...promptSuggestions, { content: '', title: ['', ''] }];
									}
								}}
							>
								<svg
									xmlns="http://www.w3.org/2000/svg"
									viewBox="0 0 20 20"
									fill="currentColor"
									class="w-4 h-4"
								>
									<path
										d="M10.75 4.75a.75.75 0 00-1.5 0v4.5h-4.5a.75.75 0 000 1.5h4.5v4.5a.75.75 0 001.5 0v-4.5h4.5a.75.75 0 000-1.5h-4.5v-4.5z"
									/>
								</svg>
							</button>
						</div>
						<div class="grid lg:grid-cols-2 flex-col gap-1.5">
							{#each promptSuggestions as prompt, promptIdx}
								<div
									class=" flex border border-gray-100 dark:border-none dark:bg-gray-850 rounded-xl py-1.5"
								>
									<div class="flex flex-col flex-1 pl-1">
										<div class="flex border-b border-gray-100 dark:border-gray-850 w-full">
											<input
												class="px-3 py-1.5 text-xs w-full bg-transparent outline-hidden border-r border-gray-100 dark:border-gray-850"
												placeholder={$i18n.t('Title (e.g. Tell me a fun fact)')}
												bind:value={prompt.title[0]}
											/>

											<input
												class="px-3 py-1.5 text-xs w-full bg-transparent outline-hidden border-r border-gray-100 dark:border-gray-850"
												placeholder={$i18n.t('Subtitle (e.g. about the Roman Empire)')}
												bind:value={prompt.title[1]}
											/>
										</div>

										<textarea
											class="px-3 py-1.5 text-xs w-full bg-transparent outline-hidden border-r border-gray-100 dark:border-gray-850 resize-none"
											placeholder={$i18n.t(
												'Prompt (e.g. Tell me a fun fact about the Roman Empire)'
											)}
											rows="3"
											bind:value={prompt.content}
										/>
									</div>

									<button
										class="px-3"
										type="button"
										on:click={() => {
											promptSuggestions.splice(promptIdx, 1);
											promptSuggestions = promptSuggestions;
										}}
									>
										<svg
											xmlns="http://www.w3.org/2000/svg"
											viewBox="0 0 20 20"
											fill="currentColor"
											class="w-4 h-4"
										>
											<path
												d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z"
											/>
										</svg>
									</button>
								</div>
							{/each}
						</div>

						{#if promptSuggestions.length > 0}
							<div class="text-xs text-left w-full mt-2">
								{$i18n.t('Adjusting these settings will apply changes universally to all users.')}
							</div>
						{/if}
					</div>
				{/if}
			</div>
		</div>

		<div class="flex justify-end text-sm font-medium">
			<button
				class="px-3.5 py-1.5 text-sm font-medium bg-black hover:bg-gray-900 text-white dark:bg-white dark:text-black dark:hover:bg-gray-100 transition rounded-full"
				type="submit"
			>
				{$i18n.t('Save')}
			</button>
		</div>
	</form>
{/if}
